- California Billionaire Tax Has Signatures Needed for Ballot, Backers Say The New York Times
- Taxing Ownership – John O. McGinnis Law & Liberty
- Wealth, millionaire tax push spreads to more states — but the trend presents a ‘challenge,’ expert says CNBC
- Billionaire-tax backers say they have enough signatures — times two — to qualify for ballot Los Angeles Times
- California billionaire tax musters enough signatures for November showdown The San Francisco Standard